import {request} from "../../request/index.js";
// pages/goods_list/index.js
Page({

  /**
   * 页面的初始数据
   */
  data: {
    tabs:[
      {
        id:0,
        value:"综合",
        isActive:true
      },
      {
        id:1,
        value:"销量",
        isActive:false
      },
      {
        id:2,
        value:"价格",
        isActive:false
      }
    ],
    goodsList:[]
  },

  QueryParams:{
    query:"",
    cid:"",
    pagenum:1,
    pagesize:10
  },

  totalPages:1,
  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.QueryParams.cid=options.cid||"";
    this.QueryParams.query=options.query||"";
    this.getGoodsList();
  },
  //获取商品列表数据
  async getGoodsList(){
    const res=await request({url:"/goods/search",data:this.QueryParams});
    const total=res.total;
    this.totalPages=Math.ceil(total/this.QueryParams.pagesize);
    //console.log(this.totalPages);
    this.setData({
      goodsList:[...this.data.goodsList,...res.goods]
    })
    wx.stopPullDownRefresh();
  },

  handleTabsItemChange(e){
    const {index}=e.detail;
    let {tabs}=this.data;
    tabs.forEach((v,i)=>i===index?v.isActive=true:v.isActive=false);
    this.setData({
      tabs
    })
  },

 onReachBottom(){
   if(this.QueryParams.pagenum>=this.totalPages){
     wx.showToast({
       title: '没有下一页数据啦！',
     })
   }
   else{
     this.QueryParams.pagenum++;
     this.getGoodsList();
   }
 },
  //下拉刷新事件
  onPullDownRefresh(){
    //重置数组
    this.setData({
      goodsList:[]
    })
    //重置页面
    this.QueryParams.pagenum=1;
    //发送请求
    this.getGoodsList();
  }
})